Laceration Protection Selvey OE Committee March 2014 Kevlarآ® aramid fiber, 5x stronger than steel...
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Transcript of Laceration Protection Selvey OE Committee March 2014 Kevlarآ® aramid fiber, 5x stronger than steel...
March 11, 2014
Robert Selvey Safety & Health Services Division
Personal Protective Equipment SME
Hazards that create lacerations
Tools with sharp surfaces Knives Razor blade tools (paint scrappers, box
cutter, Extacto®) Saws
Surfaces with sharp edges & burrs Sheet metal with sharp, serrated edges Metal tubing burrs Glass edges and shards Thin surfaces- metal, paper, plastic
Protection by: Removal or covering sharp edges & Gloves (PPE)
Metal burr A raised edge or small pieces of material remaining on a work piece. Created after machining operations, such as grinding, drilling,
milling, engraving or turning. It is removed by de-burring- Manual; Electrochemical; Thermal
energy; & Cryogenic
Some likely sources to be considered in the surveillance:
Cut end of wire
Broken Glass/ Plastic
Metal tubes, wire, pipes
Puncture PPE is different from Laceration PPE.
Protect sharp points Some likely controls to be considered in the surveillance: Barriers Covers
Traditional Cutting Tools What they have in common: BLADE IS EXPOSED even when it is not in
contact with the cutting material
Somewhat safer Cutting Tools
What they have in common:
Tool has a trigger. The blade is exposed only when the trigger is engaged. But you must take pressure off the trigger for the blade to retract.
Better tools that Lower Risk Safety features are automatic:
Blade self-retracts Blade is shielded when not cutting
As blade come further out based on friction with material being cut, Clutch on blade disengages. If friction is lost, blade snaps back in.
Safety Level Chart for TOOLS
5 levels of safety in tools
Hazardous during: • Picking Up • Use • Storage
• Safe during pickup • Hazardous during use • Safe storage
Level 3 • Safe during picking up • Lower Hazard during use • Safe during storage
No Hazard during picking up, use, or storage
Manually Retractable & Fixed Blade Knifes No Safety Features
Spring Loaded Retractable Blade Knifes
Some Safety provided
Smart Knifes Auto Retractable Blade Safety cannot be over-ridden under normal use
Concealed Blade Safety Cutters Unexposed blade, can not be overridden under normal use
Bladeless Safety Cutters No metal blades, can not be overridden under normal use
Safest Least Safe
No metal blades
Recommended Safety Cutters
Several alternative style cutting devices were evaluated in 2012, including:
Level 3: Self Retracting blade Martego 122001 Megasafe 116006
Level 2: Concealed blade Combi 109137
Cut Resistant gloves Meet ASTM standards Best gloves are made of man-made
fibers Kevlar, Spectra, Dyneema; Steel
Gloves that are subject to cut risk (do not meet Cut Resistant criteria)
Cotton; Leather, Nylon
Cut Protective Gloves
Cut Resistant Gloves Used for sheet metal handling and glass handling.
Kevlar® aramid fiber, 5x stronger than steel by weight. Flame, cut, and heat-resistance.
Spectra® polyethylene fiber that offers high cut-resistance, even when wet. Its 10X stronger than steel by weight.
Dyneema® polyethylene fiber up to 15x stronger than quality steel by weight and up to 40% stronger than aramid fibers.
Metal Mesh interlocked stainless steel mesh offers superior cut and puncture protection due to its strength. Poor comfort and fit. Conducts cold and heat.
Manufacturers use ASTM F-1790 for measuring cut protection Scale 0 – 6: Level 0 (least protective) to Level 6 (most protective).
3 - 4
3 – 4
3 – 4
Cloth gloves Cotton or nylon
woven fiber Dipped fabric
• Low cost, •Moderately durable, •Good for gripping if coated, •Poor to Fair laceration resistance •Poor for abrasion resistance •Very poor puncture resistance Scale: 0 - 1
Deerskin Pig skin Goat skin Horse hide Cow hide
•Cost more than cotton, •Fair for gripping, • Low laceration resistance Scale 0 - 1 •Very durable from abrasion, •High puncture resistant (best)
Conclusions Eliminate injuries from lacerations by:
Removing Sharp Surfaces (deburring and covering) Using Safer Tools that reduce the exposure to sharp blades Wearing PPE that is cut resistant
SURVEILLANCE Evaluate situations to determine hazards & corrective measures